Docker 安装ElasticSearch7.6.2

docker拉取镜像

docker pull elasticsearch:7.6.2

查看docker镜像

[root@VM-20-3-centos ~]# docker images
REPOSITORY      TAG       IMAGE ID       CREATED         SIZE
mysql           latest    d1dc36cf8d9e   6 weeks ago     519MB
elasticsearch   7.6.2     f29a1ee41030   23 months ago   791MB

创建ElasticSearch容器

mkdir -p /mydata/elasticsearch/config

mkdir -p /mydata/elasticsearch/data

echo "http.host: 0.0.0.0">>/mydata/elasticsearch/config/elasticsearch.yml
# 注意：http.host: 0.0.0.0 冒号后有一空格。
cd /mydata
chmod -R 777 elasticsearch/
# 文件夹赋权

命令启动

docker run --name elasticsearch -p 9200:9200 \
 -p 9300:9300 \
 -e "discovery.type=single-node" \
 -e ES_JAVA_OPTS="-Xms64m -Xmx128m" \
  -v /mydata/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
 -v /mydata/elasticsearch/data:/usr/share/elasticsearch/data \
 -v /mydata/elasticsearch/plugins:/usr/share/elasticsearch/plugins \
 -d elasticsearch:7.7.0

参数说明

--name elasticsearch：将容器命名为 elasticsearch
-p 9200:9200：将容器的9200端口映射到宿主机9200端口
-p 9300:9300：将容器的9300端口映射到宿主机9300端口，目的是集群互相通信
-e "discovery.type=single-node"：单例模式
-e ES_JAVA_OPTS="-Xms64m -Xmx128m"：配置内存大小
-v /mydata/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml：将配置文件挂载到宿主机
-v /mydata/elasticsearch/data:/usr/share/elasticsearch/data：将数据文件夹挂载到宿主机
-v /mydata/elasticsearch/plugins:/usr/share/elasticsearch/plugins：将插件目录挂载到宿主机(需重启)
-d elasticsearch:7.7.0：后台运行容器，并返回容器ID

查看容器

 docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED         STATUS         PORTS                                                                                  NAMES
50908786f096   elasticsearch:7.6.2   "/usr/local/bin/dock…"   2 minutes ago   Up 2 minutes   0.0.0.0:9200->9200/tcp, :::9200->9200/tcp, 0.0.0.0:9300->9300/tcp, :::9300->9300/tcp   elasticsearch
8725ffb0ae5d   mysql:latest          "docker-entrypoint.s…"   3 weeks ago     Up 3 weeks     0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp                                   mysql

验证是否成功

curl http://ip:9200/

docker启动容器自启

docker update elasticsearch --restart=always

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